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首页> 外文期刊>International Journal of Heat and Mass Transfer >The impact and freezing processes of a water droplet on different inclined cold surfaces
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The impact and freezing processes of a water droplet on different inclined cold surfaces

机译：水滴在不同倾斜冷表面上的冲击和冻结过程

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摘要

The present study experimentally investigated the impact and freezing processes of a water droplet on different inclined cold surfaces. The surface temperature was changed from room temperature 24.0 ℃ to -15.0 ℃. The materials of the surfaces included red copper, quartz glass, carbon fiber reinforced composite (CFRC), and glass fiber reinforced composite (GFRC). During the impact process of the water droplet, the surfaces were found to have a minor influence on the spreading time and gliding time but an apparent effect on the equilibrium time. Besides, these surfaces significantly affected the spreading maximum diameter, gliding maximum diameter, and maximum displacement of foremost point of the water droplet. In addition, once the equilibrium state of water droplet was reached, the contact diameter of the water droplet depended heavily on the type of the surfaces. As for the freezing process, the cold surfaces affected not only the freezing time of the water droplets, but the shape of the ice beads as well.
机译：本研究通过实验研究了水滴在不同倾斜冷表面上的撞击和冻结过程。表面温度从室温24.0℃改变为-15.0℃。表面材料包括红铜，石英玻璃，碳纤维增强复合材料（CFRC）和玻璃纤维增​​强复合材料（GFRC）。在水滴的撞击过程中，发现表面对铺展时间和滑行时间影响较小，但对平衡时间影响明显。此外，这些表面显着影响了散布的最大直径，滑动最大直径以及水滴最前端的最大位移。另外，一旦水滴达到平衡状态，水滴的接触直径就很大程度上取决于表面的类型。对于冷冻过程，寒冷的表面不仅影响水滴的冷冻时间，还影响冰珠的形状。

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  • 来源
  • 作者

    Zheyan Jin; Zhangning Wang; Dongyu Sui; Zhigang Yang;

  • 作者单位

    School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;

    School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;

    School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;

    Shanghai Automotive Wind Tunnel Center, Shanghai 201804, China,School of Automotive Studies, Tongji University, Shanghai 201804, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Impact; Freezing; Droplet; Inclined; Cold surface; Thermal conductivity;

    机译：影响;冷冻;水滴;倾斜的表面冷;导热系数;

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